HTCondor Week 2015

There are many reasons I enjoy the annual gathering of HTCondor users, administrators, and developers. Some of those reasons involve food and alcohol, but mostly it’s about the networking and the knowledge sharing.

Unlike many other conferences, HTCondor Week is nearly devoid of vendors. I gave a presentation on behalf of my company, and AWS was present this year, but it wasn’t a sales pitch in either case. The focus is on how HTCondor enabled research. I credit the project’s academic roots.

Every year, themes seem to develop. This year, the themes were cloud and caching. Cloud offerings seem to really be ready to take off in this community, even though Miron would say that the cloud is just a different form of grid computing that’s been done for decades. The ability to scale well beyond internal resources quickly and cheaply has obvious appeal. The limiting factor currently seems to be that university funding rules make it slightly more difficult for academic researchers than just pulling out a credit card.

In the course of one session,  three different caching mechanisms were discussed. This was interesting because it is not something that’s been discussed much in the past. It makes sense, though, that caching files common across multiple jobs on a node would be a big improvement in performance. I’m most partial to Zach Miller’s fledgling HTCache work, though the squid cache and CacheD presentations had their own appeal.

Todd Tannenbaum’s “Talk of Lies” spent a lot of time talking about performance improvements that have been made in the past year, but they really need to congratulate themselves more. I’ve seen big improvements from 8.0 to 8.2, and it looks like even more will land in 8.4. There’s some excellent work planned for the coming releases, and I hope it pans out.

After days of presentations and conversations, my brain is full of ideas for improving my company’s products. I’m really motivated to make contributions to HTCondor, too. I’m even considering carving out some time to work on that book I’ve been wanting to write for a few years. Now that would truly be a miracle.

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